환형제트 유동장의 초기지역에 있어서의 응집구조에 관한 실험적 연구 An Experimental Study on the Coherent Structures in the Initial Region of an Annular Jet.

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An experimental investigation of coherent structures in the axisymmetric mixing layer of an annular jet was carried out. The Reynolds number, based on the outer diameter of the annulus, was 2.17 X 105 The flow structures of the shear layer at several downstream stations, all within 3 outer diameter distance, were examined. Conditional sampling technique was employed to educe naturally occuring large-scale structures. Coherent vorticity and coherent Reynolds stresses were, measured. It was found that the evolution of large-scale vortical structure is completed within the distance of 2 outer diameters and that the coherent Reynlods stress increases rapidly during the evolution of large-scale structure.
Publisher
한국항공우주학회
Issue Date
1988-03
Language
Korean
Citation

한국항공우주학회지, v.16, no.1, pp.1 - 10

ISSN
1225-1348
URI
http://hdl.handle.net/10203/14560
Appears in Collection
AE-Journal Papers(저널논문)
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